PIG-3191: [piggybank] MultiStorage output filenames are not sortable (Danny Antonelli via jcoveney)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1447727 13f79535-47bb-0310-9956-ffa450edef68
PIG-3169: Remove temporary files that are not needed (Mark Wagner via jcoveney)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1447748 13f79535-47bb-0310-9956-ffa450edef68
PIG-3167: Job stats are printed incorrectly for map-only jobs (Mark Wagner via jcoveney)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1447765 13f79535-47bb-0310-9956-ffa450edef68
PIG-3192: Better call to action to download Pig in docs (rjurney via jcoveney)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1447767 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' of git://git.apache.org/pig into trunk